From 4fa11a57db0ed70548a5d544a9468b73597ff9ec Mon Sep 17 00:00:00 2001
From: gitProtogen <nozyc.kg@interia.pl>
Date: Tue, 27 Jan 2026 11:24:12 +0100
Subject: [PATCH] character can now be drawn and shifted

---
 fonts.h  |  4 +--
 ledy.ino | 78 +++++++++++++++++++++++++++++++++++++++++++++++---------
 2 files changed, 68 insertions(+), 14 deletions(-)

diff --git a/fonts.h b/fonts.h
index dc86dc9..37a73f4 100644
--- a/fonts.h
+++ b/fonts.h
@@ -401,13 +401,13 @@ constexpr bool font7x5[95][7][5] = {
   },
   // I (ASCII 73)
   {
-    {false, true, true, true, false},
+    {true, true, true, true, true},
     {false, false, true, false, false},
     {false, false, true, false, false},
     {false, false, true, false, false},
     {false, false, true, false, false},
     {false, false, true, false, false},
-    {false, true, true, true, false}
+    {true, true, true, true, true}
   },
   // J (ASCII 74)
   {
diff --git a/ledy.ino b/ledy.ino
index 35d2a94..493e7e4 100644
--- a/ledy.ino
+++ b/ledy.ino
@@ -12,11 +12,13 @@
 #define PIN 12
 
 #define PANEL_PIXEL_COUNT 16
-#define NUMPIXELS PANEL_PIXEL_COUNT*PANEL_PIXEL_COUNT
+#define PANEL_COUNT 3
+#define NUMPIXELS PANEL_PIXEL_COUNT*PANEL_PIXEL_COUNT*PANEL_COUNT
 
 Adafruit_NeoPixel pixels(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
 
 unsigned char saved_images_count = 0;
+unsigned short horizontal_cursor1_position = 0;
 
 uint32_t saved_imaged[12][16][16] = {
   {
@@ -72,13 +74,21 @@ uint32_t saved_imaged[12][16][16] = {
 };
 
 
-void setPixel(unsigned short y, unsigned short x, uint32_t color)
+void setPixel(unsigned short x, unsigned short y, uint32_t color)
 {
-  if (y % 2 == 1)
+  if (x % 2 == 1)
   {
-    x = PANEL_PIXEL_COUNT - 1 - x;
+    y = PANEL_PIXEL_COUNT - 1 - y;
   }
-  pixels.setPixelColor(x + (y * PANEL_PIXEL_COUNT), color);
+  pixels.setPixelColor(y + (x * PANEL_PIXEL_COUNT), color);
+}
+
+uint32_t getPixelColor(unsigned short x, unsigned short y) {
+  if (x % 2 == 1)
+  {
+    y = PANEL_PIXEL_COUNT - 1 - y;
+  }
+  return pixels.getPixelColor(y + (x * PANEL_PIXEL_COUNT));
 }
 
 void drawImageFromSaved(unsigned short offset_x, unsigned short offset_y, unsigned char i) {
@@ -91,37 +101,81 @@ void drawImageFromSaved(unsigned short offset_x, unsigned short offset_y, unsign
       unsigned short pixel_x = col + offset_x;
       unsigned short pixel_y = row + offset_y;
       
-      if (pixel_x >= 0 && pixel_x < PANEL_PIXEL_COUNT && 
-          pixel_y >= 0 && pixel_y < PANEL_PIXEL_COUNT) {
+      if (pixel_x >= 0 && pixel_x < NUMPIXELS && 
+          pixel_y >= 0 && pixel_y < NUMPIXELS) {
         setPixel(pixel_x, pixel_y, px_color);
       }
     }
   }
 }
 
-void drawCharacter(const bool (*character)[5], unsigned char offset_x, unsigned char offset_y, uint32_t color) {
+void drawCharacter(const bool (*character)[5], unsigned char height, unsigned char width, unsigned short offset_x, unsigned short offset_y, uint32_t color) {
+  
   for (unsigned char row = 0; row < 7; row++) {
     for (unsigned char col = 0; col < 5; col++) {
       if (character[row][col]) {
-        unsigned short pixel_x = col + offset_x;
+        unsigned short pixel_x = col + offset_x + horizontal_cursor1_position;
         unsigned short pixel_y = row + offset_y;
         
-        if (pixel_x >= 0 && pixel_x < PANEL_PIXEL_COUNT && 
-            pixel_y >= 0 && pixel_y < PANEL_PIXEL_COUNT) {
+        if (pixel_x >= 0 && pixel_x < NUMPIXELS && 
+            pixel_y >= 0 && pixel_y < NUMPIXELS) {
           setPixel(pixel_x, pixel_y, color);
         }
       }
     }
   }
+  horizontal_cursor1_position += width + offset_x + 1;
 }
 
+void fillPixels(unsigned short x1, unsigned short y1, unsigned short x2, unsigned short y2, uint32_t color)
+{
+  if (x1 > x2) {
+      unsigned short tmp = x1; x1 = x2; x2 = tmp;
+  }
+  if (y1 > y2) {
+      unsigned short tmp = y1; y1 = y2; y2 = tmp;
+  }
+
+  unsigned short width  = (unsigned short)(x2 - x1 + 1);
+  unsigned short height = (unsigned short)(y2 - y1 + 1);
+
+  for (unsigned short i = 0; i < height; i++) {
+      for (unsigned short j = 0; j < width; j++) {
+          setPixel(x1 + j, y1 + i, color);
+      }
+  }
+}
+
+void shiftGivenRectangle(unsigned short x1, unsigned short y1, unsigned short x2, unsigned short y2, unsigned char shiftBy) {
+  if (x1 > x2) {
+      unsigned short tmp = x1; x1 = x2; x2 = tmp;
+  }
+  if (y1 > y2) {
+      unsigned short tmp = y1; y1 = y2; y2 = tmp;
+  }
+
+  unsigned short width  = (unsigned short)(x2 - x1 + 1);
+  unsigned short height = (unsigned short)(y2 - y1 + 1);
+
+  for (unsigned short i = 0; i < height; i++) {
+      for (unsigned short j = 0; j < width + shiftBy; j++) {
+        setPixel(x1 + j - shiftBy, y1 + i, getPixelColor(x1 + j, y1 + i));
+        setPixel(x1 + j, y1 + i, 0x00000000);
+    }
+  }
+}
+
+
 void setup() {
   Serial.begin(115200);
 
   pixels.begin();
   pixels.clear();
   
-  drawCharacter(font7x5[0], 7, 5, 0xFFFFFFFF);
+  drawCharacter(font7x5['P' - '!'], 7, 5, 4, 0, 0x00030100);
+  drawCharacter(font7x5['T' - '!'], 7, 5, 0, 0, 0x00030100);
+  drawCharacter(font7x5['I' - '!'], 7, 5, 0, 0, 0x00030100);
+  shiftGivenRectangle(0, 0, 19, 7, 3);
   
   pixels.show();
   start_server();